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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.17 No.3
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Model testing of leakage effect due to multi-cell inflater of rapid protection system in subsea tunnel

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2015, v.17 no.3, pp.295-303




& (2015). Model testing of leakage effect due to multi-cell inflater of rapid protection system in subsea tunnel. (사)한국터널지하공간학회, 17(3), 295-303.
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Abstract

This paper presents the study of leakage effect due to multi-cell inflater of rapid protection system to protect the possibilities of tunnel damages by flooding threats and unusual leakage to be occurred during and after subsea tunnel construction. Particularly, this protect system should be necessary in subsea tunnel. This research concentrates the physical model tests due to several multi-cell inflater to study protection capacity of leakage between the inflater and tunnel liner. A 27:1 small scale model are used in the model tests. The leakage rate, water pressure and axial displacement of inflater are measured during the model tests. According to the results, the minium leakage rate clearly shows in the case of two-cell inflater compared with in other cases. It is concluded that the results of this research will be very useful to understand the fundamental information of inflater structure design and development the technology of tunnel protection structures in the future.

keywords
해저터널, 모형실험, Multi-cell inflater, 차수효과, 터널차폐시스템, Subsea tunnel, Model testing, Multi-cell inflater, Leakage effect, Tunnel protection system

Reference

1.

1. Peter Kenyon (2012), “35,000 Gallons of preventioncontaining a tunnel flood with an inflatable stopper”, Tunnel talk

2.

2. Kim, Y.I., Cho. S.K., Kim, D.H., Lee, D.H., Lee, I.M. (2003), “Protection measures against water hazards in construction of the subaqueous tunnel under the Han river in the Bundang railway”, Korean society of civil engineers of conference, pp. 369-393.

3.

3. Lee, C.R. (2014), “A fundamental study on Inflater structure to protect the tunnel damage due to flooding threats”, Master's Thesis.

4.

4. Shin, H.S. (2009), “Technology aspects of subsea tunnels”, Korean Geo-Environmental Conference, pp. 147-157.

5.

5. X. Martinez, J. Davalos, E. Barbero, E. Sosa, W. Huebsch, K. Means, L. Banta, G. Thompson (2012), “Inflatable plug for threat mitigation in transportation tunnels”, Society for the Advancement of Material and Process Engineering 2012 Conference, Baltimore, MD.

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